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Clarify FIPS instructions 

Signed-off-by: Adrian Plata <adrian.plata@docker.com>
This commit is contained in:
Adrian Plata 2019-09-30 16:22:13 -07:00
parent 7720674fc2
commit f56653138a
1 changed files with 25 additions and 12 deletions
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37
install/linux/docker-ee/rhel.md
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@ -46,22 +46,34 @@ On {{ linux-dist-long }}, Docker EE supports storage drivers, `overlay2` and `de
### FIPS 140-2 cryptographic module support
[Federal Information Processing Standards (FIPS) Publication 140-2](https://csrc.nist.gov/csrc/media/publications/fips/140/2/final/documents/fips1402.pdf) is a United States Federal security requirement for cryptographic modules.
[Federal Information Processing Standards (FIPS) Publication 140-2](https://csrc.nist.gov/csrc/media/publications/fips/140/2/final/documents/fips1402.pdf)
is a United States Federal security requirement for cryptographic modules.
With Docker EE Basic license for versions 18.03 and later, Docker provides FIPS 140-2 support in RHEL 7.3, 7.4 and 7.5. This includes a FIPS supported cryptographic module. If the RHEL implementation already has FIPS support enabled, FIPS is automatically enabled in the Docker engine.
With Docker Engine - Enterprise Basic license for versions 18.03 and later,
Docker provides FIPS 140-2 support in RHEL 7.3, 7.4 and 7.5. This includes a
FIPS supported cryptographic module. If the RHEL implementation already has FIPS
support enabled, FIPS is also automatically enabled in the Docker engine. If
FIPS support is not already enabled in your RHEL implementation, visit the
[Red Hat Product Documentation](https://access.redhat.com/documentation/en-us/)
for instructions on how to enable it.
To verify the FIPS-140-2 module is enabled in the Linux kernel, confirm the file `/proc/sys/crypto/fips_enabled` contains `1`.
To verify the FIPS-140-2 module is enabled in the Linux kernel, confirm the file
`/proc/sys/crypto/fips_enabled` contains `1`.
```
$ cat /proc/sys/crypto/fips_enabled
1
```
> **Note**: FIPS is only supported in the Docker Engine EE. UCP and DTR currently do not have support for FIPS-140-2.
> **Note**: FIPS is only supported in the Docker Engine Engine - Enterprise. UCP
> and DTR currently do not have support for FIPS-140-2.
To enable FIPS 140-2 compliance on a system that is not in FIPS 140-2 mode, do the following:
You can override FIPS 140-2 compliance on a system that is not in FIPS 140-2
mode. Note, this **does not** change FIPS 140-2 mode on the system. To override
the FIPS 140-2 mode, follow ths steps below.
Create a file called `/etc/systemd/system/docker.service.d/fips-module.conf`. It needs to contain the following:
Create a file called `/etc/systemd/system/docker.service.d/fips-module.conf`.
Add the following:
```
[Service]
@ -76,7 +88,8 @@ Restart the Docker service as root.
`$ sudo systemctl restart docker`
To confirm Docker is running with FIPS-140-2 enabled, run the `docker info` command:
To confirm Docker is running with FIPS-140-2 enabled, run the `docker info`
command:
{% raw %}
```
@ -85,13 +98,13 @@ docker info --format {{.SecurityOptions}}
```
{% endraw %}
### Disabling FIPS-140-2
### Disabling FIPS-140-2
If the system has the FIPS 140-2 cryptographic module installed on the operating system,
it is possible to disable FIPS-140-2 compliance.
If the system has the FIPS 140-2 cryptographic module installed on the operating
system, it is possible to disable FIPS-140-2 compliance.
To disable FIPS 140-2 in Docker but not the operating system, set the value `DOCKER_FIPS=0`
in the `/etc/systemd/system/docker.service.d/fips-module.conf`.
To disable FIPS 140-2 in Docker but not the operating system, set the value
`DOCKER_FIPS=0` in the `/etc/systemd/system/docker.service.d/fips-module.conf`.
Reload the Docker configuration to systemd.